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Greater Anglia
South Western Railway

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Trains to Diss from Portsmouth Harbour

First train

03:26

Last train

23:19

Departure stationPortsmouth Harbour
Arrival stationDiss
Journey time

From 4h 5m

Distance

145 miles (233 km)

Frequency

25 trains per day

Changes

2 changes

Train operators

Greater Anglia, South Western Railway, Southern, Thameslink

What are the train times from Portsmouth Harbour to Diss?

Check out the next trains departing from Portsmouth Harbour to Diss for Tuesday 10th November 2026 using our handy timetable below, including platform and live travel information. You can view the full day timetable or search for a different date here.
DepartsArrivesDuration
10:3115:004h 29m, 2 changes
11:1515:284h 13m, 2 changes
11:3316:014h 28m, 2 changes
12:1516:294h 14m, 2 changes
12:3117:024h 31m, 2 changes
13:1517:294h 14m, 2 changes
13:3117:594h 28m, 2 changes
14:1518:204h 5m, 2 changes
14:3119:024h 31m, 2 changes
15:1519:324h 17m, 2 changes

Travelling from Portsmouth Harbour to Diss by train

If you're planning to travel from Portsmouth Harbour to Diss, we're here to help!

On average, the train journey from Portsmouth Harbour to Diss takes around 5 hours 30 minutes. There are normally 25 trains per day travelling from Portsmouth Harbour to Diss.

You'll have to make 2 changes on your journey to Diss, as there are no direct trains.

Trains on this route are operated by Greater Anglia, South Western Railway, Thameslink and Southern.

Save money on your train tickets by booking in advance.

Use our Journey Planner to compare ticket prices and find the cheapest fares.

What do people frequently ask about the train journey from Portsmouth Harbour to Diss?

Want to know more about your journey from Portsmouth Harbour to Diss? We've compiled some of the most frequently asked questions by our customers to help you plan your journey.

How do I travel from Portsmouth Harbour to Diss?

You can get from Portsmouth Harbour to Diss by train in 5 hours and 30 minutes on average, with the fastest journeys taking just 4 hours and 5 minutes. Check out our Journey Planner for more details.

How long does the train from Portsmouth Harbour to Diss take?

The average journey time by train between Portsmouth Harbour and Diss is 5 hours and 30 minutes, with around 25 trains per day running on this route. The journey time may be longer on weekends and holidays, so use our Journey Planner on this page to search for a specific travel date.

What's the fastest journey time between Portsmouth Harbour and Diss by train?

The fastest journey time by train from Portsmouth Harbour to Diss is 4 hours and 5 minutes.

Can you take a train directly from Portsmouth Harbour to Diss?

No, there are no direct train services from Portsmouth Harbour to Diss. Travelling from Portsmouth Harbour to Diss by train will require a minimum of 2 changes.

How do I find cheap train tickets from Portsmouth Harbour to Diss?

As most UK train companies increase their prices as the departure date approaches, our Trainline team of experts have put together these tips to help you find the cheapest tickets.

1. Sign up to Ticket Alert

If you're planning a trip more than 12 weeks ahead, sign up to our Ticket Alert to get notified when Advance tickets are released for your travel date.

2. Use a Railcard

National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel throughout the year. Buy one with us and you'll be able to store it digitally in our app, so you'll always have it on your travels.

3. Book split tickets

Our handy feature SplitSave will 'split' your train journey into multiple tickets, which can be much cheaper than buying a single ticket. Find out more about split tickets.

4. Travel Off-Peak

If you can be flexible with your travel times, Off-Peak and Super Off-Peak tickets are usually cheaper in the UK. Generally, Off-Peak times are any time at weekends and outside of Monday to Friday morning and evening rush hours.

5. Consider a Season Ticket

Best for commuters, if you catch a train on the same route more than 3 times per week, you could save money with a Season Ticket. With annual, monthly, weekly and flexi options available, find out if a Season Ticket for Portsmouth Harbour to Diss is right for you.

For more money-saving tips on UK and European train travel, read our cheap train tickets guide.

§Advance adult single fare. Excludes booking fee. Prices seen by Trainline customers in the last 30 days. Availability limited.
† Average savings on advance fares booked at least one week before day of travel vs Anytime fares purchased on day of travel. Subject to availability. Excludes coach.

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